Fact
In the U.S., about 41,000 people die each year from secondhand smoke-related diseases.
Source 1:
"The Health Consequences of Smoking—50 Years of Progress. A Report of the Surgeon General." U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health. Cardiovascular Diseases. 2014. Report.
http://www.surgeongeneral.gov/library/reports/50-years-of-progress/sgr50-chap-8.pdf